chore(docker/builder): remove never used MINIMAL_BUILD option
chore(docker/builder): remove never used MINIMAL_BUILD option

The option was added but could not work since MINIMAL_BUILD is not declared in this scope (also not currently needed).
Furthermore, it never took effect since the builder image was never built and pushed. For the same reason, we have not noticed it until now.

Signed-off-by: Leonardo Grasso <b1c1d8736f20db3fb6c1c66bb1455ed43909f0d8@leonardograsso.com>

draios/falco,draios/falco,draios/falco,draios/falco,draios/falco,draios/falco,draios/falco,draios/falco